Home / 400,845.92-552,901.54-257,786.96

Finding the Fourth Proportional to 400,845.92, 552,901.54 and 257,786.96

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Solution

The fourth proportional to 400,845.92, 552,901.54 and 257,786.96 is: 355,575.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,845.92 : 552,901.54 = 257,786.96 : x
  2. Step 2: Convert to fraction form
    400,845.92/552,901.54 = 257,786.96/x
  3. Step 3: Cross multiply
    400,845.92x = 552,901.54 × 257,786.96
  4. Step 4: Simplify right side
    400,845.92x = 142,530,807,175.92
  5. Step 5: Solve for x
    x = 142,530,807,175.92/400,845.92
  6. Step 6: Final answer
    x = 355,575.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.